Amazing insect diversity in dead wood

The significance of dead wood for hibernating ground beetles and other insects

Abstract

The fact that dead wood is used for hibernation by many facultative saproxylic organisms is litte known to the general public. We present results from winter surveys of insects in dead wood in the northern Black Forest region and the adjacent Rhine valley. Adult ground beetles, bumblebees, hornets, and sawflies are among the most frequent taxa overwintering in dead wood. Using ground beetles as a model group, we discuss ecological mechanisms of adaptation to winter conditions. We present suggestions for including this important topic in environmental education at both primary and secondary school level, where it can be worked on in a variety of ways. Finally, we identify knowledge gaps and the need for further research.